Question

find the area of this irregular shape. a = ? m² find the area of rectangle 1.

Explanation:

Step1: Calculate the area of rectangle 1

The formula for the area of a rectangle is \(A = length\times width\). For rectangle 1, the length is \(7m\) and the width is \(2m\). So, \(A_1=2\times7 = 14m^{2}\).

Step2: Calculate the area of the middle - part rectangle

The length of the middle - part rectangle is \(5m\) and the width is \(5m\). Using the area formula \(A = length\times width\), we get \(A_2 = 5\times5=25m^{2}\).

Step3: Calculate the area of rectangle 2

The length of rectangle 2 is \(7m\) and the width is \(2m\). By the area formula \(A = length\times width\), \(A_3=2\times7 = 14m^{2}\).

Step4: Calculate the total area

The total area \(A=A_1 + A_2+A_3\). Substitute the values: \(A=14 + 25+14\).

Answer:

\(53\)